/**
* random images
*/
var a = new Array();
a[1] = new Image(); a[1].src = 'images/fotos/atwork_garn.jpg';
a[2] = new Image(); a[2].src = 'images/fotos/atwork_garnrot.jpg';
a[3] = new Image(); a[3].src = 'images/fotos/atwork_hand.jpg';
a[4] = new Image(); a[4].src = 'images/fotos/atwork_kreide.jpg';
a[5] = new Image(); a[5].src = 'images/fotos/atwork_sophie_rotmuetze.jpg';
a[6] = new Image(); a[6].src = 'images/fotos/atwork_nadeln.jpg';

/**
* random number
*/
var b = Math.round(Math.random() * 6);

if (b < 1 || b > 6) {
    b = 1;
}